By Clive Jones BBC Sport at The Crucible

O'Sullivan is on course for a second appearance in the final

Ronnie O'Sullivan produced an awesome display in the second session of his semi-final against Stephen Hendry as he stretched his lead to 13-3.

O'Sullivan won the first four frames of the afternoon in just 42 minutes before the mid-session interval.

The Rocket then came out and won the next three after the break before Hendry pinched the last.

But it was scant consolation for Hendry, with O'Sullivan needing just four more frames to reach the final.

Semi-final latest

S Hendry (Sco) 3-13 R O'Sullivan (Eng)
17-86 (85) 61-16 (61) 0-81 42-68 0-127 (127) 0-68 (67) 39-98 (98) 85-0 (81) 6-81 (81) 0-92 (92) 0-71 (52) 9-117 (117) 36-78 21-63 (58) 0-79 (63) 66-49